Effects of processing history and annealing on polymorphic structure of nylon-6/montmorillonite nanocomposites
文献类型：期刊论文
| 作者 | Xie, SB; Zhang, SM; Liu, HJ; Chen, GM; Feng, M; Qin, HL; Wang, FS; Yang, MS |
| 刊名 | POLYMER
 |
| 出版日期 | 2005-06-27 |
| 卷号 | 46期号:14页码:5417-5427 |
| 关键词 | Nylon-6 Nanocomposite Crystal Structure |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2005.03.094 |
| 英文摘要 | The effects of processing history and annealing treatment on the thermal property and polymorphic Structure of nylon-6/clay nanocomposites (NCNs) have been investigated. The nanocomposites, including intercalated and exfoliated ones, were prepared by extruding nylon-6 (N6) with sodium montmorillonite (Na-MMT) or organo-montmorillonite (OMMT), respectively. DSC analysis revealed multiple melting endotherms in either the extruded or the injection-molded N6 and NCNs samples. It has been observed that a small exothermic peak around 195 degrees C just before the lower melting peak in the skin regions. We demonstrated that this sub-T-m transition was directly related to the processing-induced shear stresses. WAXD analysis was further performed to characterize the polymorphic structure of injection-molded N6 and NCNs before and after annealing. Annealing at a temperature (80 degrees C) above the T-g of N6 resulted in increase of the absolute content of gamma-form in the skin regions and of the relative content of gamma-form in the core regions of NCNs. In particular, annealing only leaded to increase the fraction of gamma-form in the exfoliated N6/OMMT nanocomposites, which might be related to a confining effect of MMT platelet on the polymer chains mobility. (c) 2005 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000229945500050 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/57561]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, SM |
| 作者单位 | Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, SB,Zhang, SM,Liu, HJ,et al. Effects of processing history and annealing on polymorphic structure of nylon-6/montmorillonite nanocomposites[J]. POLYMER,2005,46(14):5417-5427. |
| APA | Xie, SB.,Zhang, SM.,Liu, HJ.,Chen, GM.,Feng, M.,...&Yang, MS.(2005).Effects of processing history and annealing on polymorphic structure of nylon-6/montmorillonite nanocomposites.POLYMER,46(14),5417-5427. |
| MLA | Xie, SB,et al."Effects of processing history and annealing on polymorphic structure of nylon-6/montmorillonite nanocomposites".POLYMER 46.14(2005):5417-5427. |
入库方式： OAI收割
来源：化学研究所
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